Exploring specific features of Transport Interchange Hubs (TIH) design, taking into account the climatic conditions of the Russian Arctic

This paper provides a more detailed analysis of the context of designing Transport Interchange Hubs (TIHs) in the Arctic Zone of the Russian Federation (AZRF). It uses a design framework proposed by another paper also presented in this conference by the same authors [1] to discuss how green spaces can be inte-grated to TIHs in extreme climates to enhance the qualities of different types of spaces inside terminals considering implications of these in the overall assess-ment of building performance. It also discusses, the way pedestrian flow and movement is modelled and simulated in Russia in relation to the different simula-tion techniques used in other countries (mainly the West) and what are the ad-vantages these different models offer in the assessment of design decisions for TIHs in the AZRF considering how these could potentially be integrated with parametric design tools, finishing by highlighting complexities involved in de-signing compact buildings, a necessary requirement to reduce heat losses and the impact of building footprint on the permafrost. As the AZRF is now experiencing unprecedented economic development and completely lacks transport integrated facilities (TIHs) this paper attempts to review and discuss specific features of these buildings so new developments currently planned for the Russian Arctic can be better designed and assessed mainly in relation to pedestrian flow and their integration with opportunity spaces to improve the quality of passengers’ waiting time

Examining travelers "optimal strategies" in transit trip choices, applying a classification tree approach on transit quality of service indicators

According to Spiess and Florian (1989) [1], at each transfer point passengers may shape the "optimal" for them strategy taking into account minimum generalized travel cost. The generalized cost of trip choices is formulated based on objective and subjective criteria of travelers that reflect their perception of the generalized cost of their trip. Quality of Service (QS) parameters affect users?perceptions and may influence the formulation of the perceived cost and furthermore may influence travel choices. This paper examines the transit QS formulation by analyzing 26 quality indicators which have been assessed by transit users through a Customer Satisfaction Survey (CSS). The survey took place in the city of Thessaloniki, Greece in the summer of 2012. This paper examines travelers optimal strategies based on transit QS by applying two classification trees on transit quality of service indicators. A Classification and Regression tree has been used to classify the important quality indicators among male and female travelers and a J48 classification algorithm has been applied to classify all quality attributes based on their importance in the general assessment formulation of transit QS. Research pointed out that stop location is the most important attribute to a gender classification of transit QS attributes, followed by the indicator of information by phone, internet. For the general assessment of the transit QS as perceived by transit users, the root node of the classification tree is the security against crimes on bus, which denotes the most important predictor in such an analysis

Electrochemistry of ring-substituted 1-hydroxynaphthalene-2-carboxanilides: Relation to structure and biological activity

Twenty-two novel antimycobacterial agents, 1-hydroxynaphthalene-2-carboxanilides, were studied by cyclic voltammetry on a glassy carbon electrode in a phosphate buffer pH 7.2 – dimethyl sulfoxide (DMSO) mixed medium (9:1; v/v). All compounds exhibited similar voltammetric behavior with one irreversible anodic signal in the range 100–300 mV corresponding to the oxidation of hydroxyl group on the naphthalene moiety. A shift of the oxidation potential was caused solely by electron donating or withdrawing effects of substituents and their position on the benzene moiety. Mechanism of oxidation in the studied medium was briefly outlined. Values of oxidation potentials exhibited very good linear correlation with calculated Hammett σ substituent constants. For all active compounds, a relationship between oxidation potentials and MIC or IC50 values obtained from in vitro screening was investigated in detail. Primary in vitro screening of synthesized compounds was previously performed against three species of Mycobacterium pathogens. Additionally, their activity related to the inhibition of photosynthetic electron transport (PET) in spinach chloroplasts was tested in previous publications. In vitro screening against Mycobacterium tuberculosis was performed here for the first time with 1-hydroxy-N-(3-trifluoromethylphenyl)naphthalene-2-carboxamide being the most effective (MIC = 11.7 μmol L−1). Furthermore, several other compounds showed higher antimycobacterial activity than the standard isoniazid. Relation of biological activities and oxidation potentials was successfully found in some cases; however, final correlations must also be considered with other physical and chemical factors contributing to the biological activity. Relation of structure, biological activity and electrochemical potential was also studied by cyclic voltammetry in cathodic area for three compounds containing reducible nitro moiety. © 2019 Elsevier Lt

Alternating Binaphthyl−Thiophene Copolymers: Synthesis, Spectroscopy, and Photophysics and Their Relevance to the Question of Energy Migration versus Conformational Relaxation

The synthesis and a comprehensive spectroscopic and photophysical study are presented of four alternating binaphthyl−oligothiophene copolymers (DP: 10−15 repeat units) in solution at room and low temperature and in the solid state (thin films). Detailed results are presented on absorption, emission, and triplet−triplet absorption spectra together with all relevant quantum yields (fluorescence, intersystem crossing, internal conversion, and singlet oxygen formation), excited-state lifetimes, and singlet and triplet energies. From these, several conclusions can be drawn. First, the main deactivation channels for the molecules in solution are the radiationless processes (S1 → S0 internal conversion and S1 → T1 intersystem crossing). Second, in the solid state the fluorescence quantum yields are smaller than those in solution. From time-resolved fluorescence decays in the picosecond time domain, three decay components are seen: a fast decay (40−60 ps) at short wavelengths, which becomes a rising component at longer wavelengths, an intermediate decay component (330−477 ps) associated with an ensemble of isolated segment-like units, which is dominant at the initial part of the emissive spectra and progressively decreases for longer emissions, and a third exponential related to the emission of the fully relaxed polymer. Together with steady-state anisotropy studies, this is discussed in terms of the possibilities of energy migration/transfer along the polymer chain and of the conformational (torsional) relaxation of the systems studied

Interaction of NO2 with BaO: From cooperative adsorption to Ba(NO3)(2) formation

The adsorption and reaction of NO2 on a thick (> 30 ML), pure BaO film deposited onto an A]Al2O3/NiAl(110) substrate were investigated using temperature-programmed desorption, infrared reflection absorption spectroscopy, and X-ray photoelectron spectroscopy techniques. For the first time, it was clearly demonstrated that BaO reacts with NO2 to initially form nitrite-nitrate ion pairs by the cooperative adsorption mechanism predicted by theoretical calculation. These NO2-/NO3- ion pairs readily form even at 90 K. In the decomposition process of these ion pairs, first the nitrite species release an NO molecule and then form BaO2. At higher temperatures, nitrate species decompose in two steps: at lower temperature as NO2 only, then, at higher temperature, as NO + O-2. The results of NO2 adsorption/reaction on this model system are identical to those we have found on a high surface area 20 wt % BaO/gamma-Al2O3 sample with the exception of surface nitrates that were only observed on the high surface area materialclose474